Clonmethan (Irish: Gleann Meáin; formerly also Clonmelkin, Kilmethan, or Glimmethan) is a townland and a civil parish in the ancient barony of Balrothery West, Fingal in Ireland. It is bordered by the parishes of Palmerstown to the west, to the north, to the northeast, to the east, to the southeast, to the south, and , County Meath to the southwest.